Proszę o rozwiązanie tych przykładów
f)
... = (5 i 9/12 - 8 i 4/12) : (1/2 - 4/9) - 2/3 * (-27/4) =
-( 7 i 16/12 - 5 i 9/12) : (9/18 - 8/18) - (-9/2) =
(- 2 i 7/12) : 1/18 + 9/2 = (- 31/12) * 18/1 + 9/2 = (-93/2) + 9/2 = - 84/2 = - 42
g)
... = 4/5 : (5/10 - 2/10) - (2/3 - (9/24 - 1 i 8/24)) =
4/5 : 3/10 - (2/3 - (- 32/24 - 9/24) = 4/5 * 10/3 - (2/3 - (- 23/24)) =
8/3 - (2/3 + 23/24) = 8/3 - 2/3 - 23/24 = 6/3 - 23/24 = 2 i 23/24 = 1 i 1/24
h)
.... = ( (-3/2)^2 - (-4/3)^2) : 17/4 = ( 9/4 - 16/9) * 4/17 = (81/36 - 64/36) * 4/17 = 17/36 * 4/17 = 1/9
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f)
... = (5 i 9/12 - 8 i 4/12) : (1/2 - 4/9) - 2/3 * (-27/4) =
-( 7 i 16/12 - 5 i 9/12) : (9/18 - 8/18) - (-9/2) =
(- 2 i 7/12) : 1/18 + 9/2 = (- 31/12) * 18/1 + 9/2 = (-93/2) + 9/2 = - 84/2 = - 42
g)
... = 4/5 : (5/10 - 2/10) - (2/3 - (9/24 - 1 i 8/24)) =
4/5 : 3/10 - (2/3 - (- 32/24 - 9/24) = 4/5 * 10/3 - (2/3 - (- 23/24)) =
8/3 - (2/3 + 23/24) = 8/3 - 2/3 - 23/24 = 6/3 - 23/24 = 2 i 23/24 = 1 i 1/24
h)
.... = ( (-3/2)^2 - (-4/3)^2) : 17/4 = ( 9/4 - 16/9) * 4/17 = (81/36 - 64/36) * 4/17 = 17/36 * 4/17 = 1/9